What are the HMRC tax categories for transactions?

Please note that this feature is currently in testing and is only available to a small set of our business customers.

There are a number of different categories used by HMRC when you file your taxes to help you separate and organise your business finances.

Please be aware that Monzo cannot provide any advice on how to categorise your individual finances, as we are not regulated to provide tax advice. If you are not sure which category to use, please consider contacting HMRC, researching the categories online, or getting professional tax advice.

Here is a list of the tax categories available with Monzo and some examples:

Income Categories:


  • Business earnings

Money you earn from your main work or services.

Examples: customer payments, project income, product sales.


  • Other business income

Money linked to your business but not from your usual trading activities.

Examples: grants, compensation, tips, selling old equipment.


  • Non-business income

Money you receive that isn't related to your business.

Examples: gifts, personal income, refunds unrelated to your business.


Expense Categories:


  • Admin costs

Day-to-day office and admin costs that help you run your business.

Examples: stationery, work phone bills, software subscriptions.


  • Advertising costs

Money spent promoting or marketing your business.

Examples: online ads, flyers, sponsorship.


  • Business entertainment costs

Money spent hosting or entertaining clients or customers.

Examples: client meals, hospitality events, taking a customer to a show.


  • Car, van and travel expenses

Travel or vehicle costs for work trips or running your business on the move.

Examples: fuel for business journeys, train fares, mileage claims.


  • Cost of goods

Items or materials you buy to sell on or use directly in your work.

Examples: stock, raw materials, supplies.


  • Depreciation

Adjustments for equipment or vehicles that lose value over time.

Examples: equipment write-downs, selling business tools at a loss


  • Financial charges

Banking or finance fees for running your business.

Examples: business account fees, credit card charges, payment processing fees.


  • Interest on lending

Interest you pay on loans or borrowing used for your business.

Examples: loan interest, overdraft interest, equipment finance interest.


  • Maintenance costs

Fixing or maintaining equipment, tools or business property.

Examples: repairing machinery, maintaining tools, fixing your workspace.


  • Payments to subcontractors

Money you pay subcontractors or freelancers to help deliver your work.

Examples: freelance support, tradespeople you hire, CIS subcontractors.


  • Premises running costs

Costs for keeping your business space running.

Examples: rent, utilities, business insurance.


  • Professional fees

Payments to experts who support your business.

Examples: accountants, legal advice, consultants.


  • Wages and staff costs

Payments to employees or people who work for your business.

Examples: salaries, pensions, staff benefits.


Other Categories:


  • Other business expenses

Other costs for running your business that don't fit another category.

Examples: business subscriptions, licences, small one-off purchases.


  • Personal cost

Money spent on something that wasn’t for your business.

Examples: your home food shopping, medical prescriptions


  • Paying myself

Payments to yourself from the business.

Examples: Personal funds, reimbursed expenses


  • Paying taxes

Payments to HMRC from your business.

Examples: Income Tax, National Insurance Contributions


  • Not relevant to my business

Money moved into or out of the business account that does not relate to your taxable income.

Examples: Mistaken transfer, Income for another business


  • Transfers

Moving money between accounts that both belong to the same business.

Examples: external savings, second business account


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